Licenciatura en Nutrición y Ciencias de los Alimentos

Demand for organic foods is partially driven by consumers’ perceptions that they are more nutritious. However, scientific opinion is divided on whether there are significant nutritional differences between organic and non-organic foods, and two recent reviews have concluded that there are no differences. In the present study, we carried out meta-analyses based on 343 peer-reviewed publications that indicate statistically significant and meaningful differences in composition between organic and non-organic crops/crop-based foods. Most importantly, the concentrations of a range of antioxidants such as polyphenolics were found to be substantially higher in organic crops/crop-based foods, with those of phenolic acids, flavanones, stilbenes, flavones, flavonols and anthocyanins being an estimated 19 (95 % CI 5, 33) %, 69 (95 % CI 13, 125) %, 28 (95 % CI 12, 44) %, 26 (95 % CI 3, 48) %, 50 (95 % CI 28, 72) % and 51 (95 % CI 17, 86) % higher, respectively. Many of these compounds have previously been linked to a reduced risk of chronic diseases, including CVD and neurodegenerative diseases and certain cancers, in dietary intervention and epidemiological studies. Additionally, the frequency of occurrence of pesticide residues was found to be four times higher in conventional crops, which also contained significantly higher concentrations of the toxic metal Cd. Significant differences were also detected for some other (e.g. minerals and vitamins) compounds. There is evidence that higher antioxidant concentrations and lower Cd concentrations are linked to specific agronomic practices (e.g. non-use of mineral N and P fertilisers, respectively) prescribed in organic farming systems. In conclusion, organic crops, on average, have higher concentrations of antioxidants, lower concentrations of Cd and a lower incidence of pesticide residues than the non-organic comparators across regions and production seasons.

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17 November 2014, Rome – FAO has published a comprehensive pocketbook of nutrition-related data covering all regions of the world ahead of the Second International Conference on Nutrition (ICN2) taking place in Rome this week.

Food and Nutrition in Numbers – a pocket-sized compendium dedicated to the state of nutrition worldwide— offers diverse data and visualizations highlighting trends on such topics as micronutrient deficiencies, overweight, obesity and non-communicable diseases from 1990 to the present.

Additionally, it offers indicators on the links between nutrition, health and the environment.

Readers can find detailed data on such topics as food prices, food consumption, agriculture-related carbon emissions and land use, among others.

“The pocketbook is a useful reference for policy makers, as it provides an overview of various aspects of nutrition at country, regional and global levels,” said Josef Schmidhuber, Deputy Director of FAO’s Statistics Division.

“That’s the starting point for evidence-based food policy analysis, and for getting a more complete picture of health and environmental impacts associated with nutrition,” he added.

 

 

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Edición del mes de noviembre de 2014 de la revista NOTICIAJ, órgano informativo de la Cámara de la Industria Alimenticia de Jalisco.

El nuevo volumen incluye información interesante acerca del etiquetado de alimentos y de la industria alimentaria.

Consúltalo dando clic aquí